Question 1 The dipeptide below is formed by linking the amino acid isoleucine via amide bond to the amino acid cysteine. H₂N OH SH a) Label the alpha position of cysteine and the beta position of isoleucine b) In the box provided, draw the structure of the dipeptide in the stomach (pH = 2) c) Is there a pH where the dipeptide will exist as it is drawn above? d) Why or why not?

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